Etymologies

After Teddy, nickname of Theodore Roosevelt, who was depicted in a cartoon sparing the life of a bear cub.

(American Heritage® Dictionary of the English Language, Fourth Edition)

It was Morris Michtom, the owner of a candy store in Brooklyn N.Y., that made the first “Teddy Bear” in the year 1902 in honor of then American President Theodore “Teddy” Roosevelt when as the story goes she had heard he’d refused to shoot a bear cub on one of his hunting trips. (Wiktionary)